20011995

素因数分解:

$3^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{547}}^1$

素因数の和:832

約数の個数: 32

約数和(自身を含む): 35773440

約数和(自身を除く): 15761445

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 271, 547, 813, 1355, 1641, 2439, 2735, 4065, 4923, 7317, 8205, 12195, 14769, 24615, 36585, 73845, 148237, 444711, 741185, 1334133, 2223555, 4002399, 6670665, 20011995]

約数ペア:

[(1, 20011995), (3, 6670665), (5, 4002399), (9, 2223555), (15, 1334133), (27, 741185), (45, 444711), (135, 148237), (271, 73845), (547, 36585), (813, 24615), (1355, 14769), (1641, 12195), (2439, 8205), (2735, 7317), (4065, 4923)]